Segment Information - Segment Assets (Details) (USD $) In Millions, unless otherwise specified	Jun. 28, 2014	Dec. 31, 2013
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	$ 2,362.9	$ 1,990.9
CES [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	203.6	199.0
AV [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	65.8	148.9
Segment Reconciling Items [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents, including current restricted cash	92.2	83.8
Deferred tax assets	30.8	29.7
Other assets, including long-term restricted investments and marketable securities	44.8	37.7
Operating Segments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	2,195.1	1,839.7
Operating Segments [Member] | RESV [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	612.6	610.7
Operating Segments [Member] | TECH [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	407.8	327.7
Operating Segments [Member] | DMS [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	376.1	378.4
Operating Segments [Member] | RHC [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	$ 529.2	$ 175.0